////1001. A+B Format (20)
//时间限制
//400 ms
//内存限制
//65536 kB
//代码长度限制
//16000 B
//判题程序
//Standard
//作者
//CHEN, Yue
//Calculate a + b and output the sum in standard format -- that is, the digits
//must be separated into groups of three by commas (unless there are less
//                                                  than four digits).
//
//Input
//
//Each input file contains one test case. Each case contains a pair of
//integers a and b where -1000000 <= a, b <= 1000000. The numbers are
//separated by a space.
//
//Output
//
//For each test case, you should output the sum of a and b in one line.
//The sum must be written in the standard format.
//
//Sample Input
//-1000000 9
//Sample Output
//-999,991

#include <iostream>
using namespace std;
int main() {
    int a;
    int b;
    cin >> a >> b;
    int result = a + b;
    if (result < 0) {
        cout << "-";
        result = result * (-1);
    }
    int s[7];
    if (result == 0) {
        cout << 0;
        return 0;
    }
    int i = 0;
    while (result != 0) {
        s[i++] = result % 10;
        result = result / 10;
    }
    int count = i;
    for (int j = i - 1; j >= 0; j--) {
        cout << s[j];
        count--;
        if (count % 3 == 0 && count != 0)
            cout << ",";
    }
    return 0;
}
